The used kapton that you posted is Kapton MT and is very good. The roll of tape is Kapton HN and while it's OK for power supply FETs and most class D output FETs, it's marginal for the outputs in a class B or AB amplifier.

The used kapton that you posted is Kapton MT and is very good. The roll of tape is Kapton HN and while it's OK for power supply FETs and most class D output FETs, it's marginal for the outputs in a class B or AB amplifier.

awesome, thanks.

Quote:

Originally Posted by Perry Babin

Mica is very good. Why not reuse them?

You can buy them from virtually any electronics distributor.

I see the ones with holes, it would be nice to have the 46mm x 25mm the used to cover 2 tip packages at once.
The originals where splintering and I got impatient and tossed them.

It's 'probably' OK but I'd likely replace it. Something like the mcmaster 1466N12 would be good if there is enough clearance for it (there should be). That's the part number for 1/2" tape. You may need 3/4 or 1"/